Year	current US$
1970	299927257401.80414
1971	335868356164.70123
1972	396660329423.9332
1973	529315349460.66583
1974	697276374257.9878
1975	752418746311.908
1976	832172886611.364
1977	944557810780.9348
1978	1130786586069.126
1979	1385969610044.325
1980	1635317196313.675
1981	1637537240680.552
1982	1559940200987.4634
1983	1548671072717.996
1984	1648111278613.6438
1985	1693635589318.9065
1986	1974190723269.8672
1987	2327262372784.712
1988	2681727543641.5054
1989	2888818341022.9746
1990	3344787283486.637
1991	3500561011614.1426
1992	3762855800152.758
1993	3710837649410.2837
1994	4140699413962.6494
1995	4904428713499.76
1996	5073184222281.774
1997	5204376101173.517
1998	5201930892049.233
1999	5336413540047.341
2000	5747048335845.486
2001	5555931260896.85
2002	5767469492595.162
2003	6617638948443.6
2004	7901357663726.677
2005	8676946648750.292
2006	9765257255163.71
2007	11228930900167.74
2008	12487620188340.787
2009	10122981730210.781
2010	11647255003866.342
2011	13551399228871.996
2012	13510128838744.127
2013	13886698559833.684
2014	14217210826020.594
2015	12787000722747.357
2016	12699271475136.521
2017	13817964877410.04
2018	15000766577008.77
2019	14723019515066.09
2020	13168042334032.928
2021	16066047228452.348
2022	17645130185008.66
2023	17730267492431.31